Drum screen type screening device used after conversion of insects to plastic film residue mixture

Abstract

The utility model discloses a drum screen type screening device used after conversion of insects into a residual film mixture, and relates to the technical field of agricultural machinery. The rotary screen comprises a rack, a fan, a rotary screen body, an auger, a riding wheel, a motor and a protective cover. The fan is fixedly connected to the foremost end of the rack; the drum screen is horizontally supported on the riding wheels; the auger is arranged right below the drum screen; the protective cover is arranged outside the drum screen and the auger, and the front end of the auger protective cover is further provided with an insect sand discharging port; the device is reasonable in layout and compact in structure, saves resources, facilitates screening of materials after insects convert plastic film residue mixtures, and is higher in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of residual film and insect transformation product separation devices, and more specifically to a drum screen type screening device for residual film mixture after insect transformation. Background Art

[0002] The mulching technology has brought huge economic benefits to agricultural production because of its functions of increasing temperature, retaining soil moisture, and increasing crop yields. However, the residual film left in the farmland after the harvest has also caused serious white pollution to the agricultural ecological environment. Mechanized residual film recovery technology is currently the main means to solve the pollution of residual film in farmland. It can effectively clean and collect residual film from farmland, but the recovered residual film contains a large amount of impurities such as straw and soil, which results in the recycled residual film not being able to be directly reused and the subsequent screening cost is extremely high.

[0003] The study found that the larvae of the white-spotted flower beetle, as a saprophagous insect, can feed on the straw in the fermented film residue mixture, and the insect sand it produces can be used as organic fertilizer, and the larvae themselves can be used as high-protein feed or medicine. In general, using the larvae of the white-spotted flower beetle to transform the film residue mixture not only solves the current problem of film-stalk separation difficulties, but also creates huge economic benefits.

[0004] Therefore, providing an efficient screening device for the mixture of residual film in agricultural fields after insect bioconversion is a key issue that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The utility model aims to develop a drum screen type screening device for insect transformation residual film mixture to solve the problems listed in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drum screen type screening device for insect transformation residual film mixture is characterized by comprising: a frame, a fan, a drum screen, an auger, a supporting wheel, a motor I, a motor II and a protective cover.

[0008] The fan is fixedly connected to the front end of the frame. Driven by the motor I, the fan starts to rotate and blows air into the drum screen.

[0009] The above-mentioned drum screen is horizontally supported on the supporting wheel. Under the drive of motor II, the supporting wheel fixedly connected to the transmission shaft starts to rotate, thereby driving the drum screen to rotate around its own axis; spiral blades and a material-discharging plate are arranged on the inner wall of the drum screen.

[0010] The above-mentioned auger is arranged just below the drum screen and is used to transport the worm sand dropped into the holes of the drum screen. The power is provided by the motor II through the transmission shaft.

[0011] The above-mentioned protective cover is arranged on the outside of the drum screen and the auger to prevent dust and prevent the worm sand from spreading everywhere, wherein the front end of the auger protective cover is also provided with a worm sand discharge port.

[0012] The above-mentioned post-drum screen type screening device for insect conversion residual film mixture is characterized in that it also includes: a wind direction regulating device, which is arranged behind the motor I support plate and is hinged thereto.

[0013] The above-mentioned post-drum screen type screening device for the insect conversion residual film mixture is characterized in that it also includes: a feed plate, and the feed plate is arranged directly above the wind direction adjustment device.

[0014] The above-mentioned post-drum screen screening device for insect-converted residual film mixture is characterized in that it also includes: a larvae discharge port, which is arranged below the rear end of the drum screen and fixedly connected to the frame.

[0015] The above-mentioned post-drum screen screening device for insect-converted residual film mixture is characterized in that it also includes: a film collecting net box, which is arranged directly behind the drum screen and fixedly connected to the drum screen shield.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The wind direction regulating device can change the direction of airflow by changing its own inclination angle, causing the material to enter the drum screen in a parabolic shape, thus avoiding the generation of agglomerated mixtures due to a certain moisture content in the material to be screened.

[0018] The material-shifting plate installed on the spiral blades on the inner wall of the drum screen can make the material in the drum screen continuously flip and throw, thus avoiding the phenomenon that the worm sand and larvae are pressed on the residual film when the drum screen is screening the material, making the residual film difficult to be blown out by the airflow.

[0019] Holes are punched on the spiral blades where they are fixed to the material-discharging plate to prevent residual film from hanging on the material-discharging plate and being difficult to be blown out by the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an isometric view of a drum screen type screening device for insect transformation residual film mixture;

[0021] Figure 2 It is an isometric view of a drum screen type screening device for insect transformation residual film mixture in different directions;

[0022] Figure 3 Schematic diagram of the drum screen structure.

[0023] In the figure: 1-fan, 2-motor I, 3-feeding plate, 4-spiral blade, 5-feeding plate, 6-drum screen, 7-shield, 8-film collecting box, 9-supporting wheel, 10-auger, 11-motor II, 12-wind direction adjustment device, 13-frame, 14-larvae discharge port DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0025] Reference Figure 1 and Figure 2 A post-drum screen type screening device for insect-converted residual film mixture, comprising: a frame 13, a fan 1, a drum screen 6, an auger 10, a supporting wheel 9, a motor Ⅰ2, a motor Ⅱ11 and a shield 7. The fan 1 is fixedly connected to the front end of the frame 13. Driven by the motor Ⅰ2, the fan 1 starts to rotate and blows air into the drum screen 6; the drum screen 6 is horizontally supported on the supporting wheel 9. Driven by the motor Ⅱ11, the supporting wheel 9 fixedly connected to the transmission shaft starts to rotate, thereby driving the drum screen 6 to rotate around its own axis; spiral blades 4 and a material-discharging plate 5 are arranged on the inner wall of the drum screen 6; the auger 10 is arranged directly below the drum screen 6, and is used to transport the insect sand that falls into the holes of the drum screen 6. The power is provided by the motor Ⅱ11. Provided through the transmission shaft; the shield 7 is arranged on the outside of the drum screen 6 and the auger 10, and is used to prevent dust and prevent the insect sand from spreading everywhere, wherein the front end of the auger shield 7 is also provided with an insect sand discharge port; the wind direction adjustment device 12 is arranged behind the motor Ⅰ2 support plate and is hinged thereto; the feed plate 3 is arranged directly above the wind direction adjustment device 12; the larvae discharge port 14 is arranged below the rear end of the drum screen 6 and is fixedly connected to the frame 13; the film collecting box 8 is arranged directly behind the drum screen 6 and is fixedly connected to the drum screen shield 7.

[0026] The working process and principle of the utility model are as follows:

[0027] During operation, when the material to be screened enters from the feed plate, the airflow generated by the fan begins to contact the material. Under the action of the wind direction adjustment plate, the material pours into the drum screen in a parabolic shape. Due to the obvious differences in the suspension characteristics of the white-spotted flower beetle larvae, insect sand and residual film, most of the residual film is blown directly to the film collection box at the tail end of the drum screen by the airflow without contacting the drum screen. A small amount of residual film that falls into the drum screen and is covered by insect sand and larvae is blown out by the airflow after flipping and throwing under the action of the material-shifting plate. The insect sand and white-spotted flower beetle larvae fall into different positions in the drum screen due to their own gravity. Driven by the spiral blades, the two continue to move toward the tail end of the drum screen. During the movement, the smaller insect sand leaks out from the screen mesh and is transported to the insect sand discharge port by the auger. The larger white-spotted flower beetle larvae are directly taken out from the tail end of the drum screen to the larvae discharge port by the spiral blades, thereby achieving effective separation of the three materials.

[0028] Finally, it should be noted that the above is only a specific embodiment of the present invention. Obviously, the present invention is not limited to the above embodiment, and there are many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field are considered to be within the protection scope of the present invention.

Claims

1. A drum screen type screening device for insect transformation residual film mixture, characterized in that: include: A frame (13), a fan (1), a drum screen (6), an auger (10), a supporting wheel (9), a motor I (2), a motor II (11) and a protective cover (7); The fan (1) is fixedly connected to the front end of the frame (13). Driven by the motor I (2), the fan (1) starts to rotate and blows air into the drum screen (6); The drum screen (6) is horizontally supported on a supporting wheel (9). When driven by a motor II (11), the supporting wheel (9) fixedly connected to the transmission shaft starts to rotate, thereby driving the drum screen (6) to rotate around its own axis. The inner wall of the drum screen (6) is provided with a spiral blade (4) and a material-discharging plate (5). The auger (10) is arranged directly below the drum screen (6) and is used to transport the worm sand dropped from the holes of the drum screen (6). The power is provided by the motor II (11) through the transmission shaft. The protective cover (7) is arranged outside the drum screen (6) and the auger (10) to prevent dust and prevent the worm sand from spreading everywhere, wherein the front end of the auger protective cover (7) is also provided with a worm sand discharge port.

2. The post-drum screen type screening device for insect transformation residual film mixture according to claim 1 is characterized in that: It also includes a wind direction adjusting device (12), which is arranged behind the support plate of the motor I (2) and is hinged thereto.

3. The post-drum screen type screening device for insect transformation residual film mixture according to claim 1, characterized in that: It also comprises a feed plate (3), wherein the feed plate (3) is arranged directly above the wind direction adjustment device (12).

4. The post-drum screen type screening device for insect transformation residual film mixture according to claim 1, characterized in that: It also comprises a larvae discharge port (14), which is arranged below the rear end of the drum screen (6) and is fixedly connected to the frame (13).

5. The post-drum screen type screening device for insect transformation residual film mixture according to claim 1, characterized in that: It also comprises a film collecting net box (8), which is arranged directly behind the drum screen (6) and is fixedly connected to the drum screen shield (7).

Images